Re: Changing NOT NULL condition on column

saludos.

en 7.3:
ALTER TABLE [ ONLY ] table [ * ]
    ALTER [ COLUMN ] column { SET | DROP } NOT NULL

en 7.2 no funciona.
tendrias que drop la columna y recrearla.


>From: Bob Smith <bsmith@h-e.com>
>To: pgsql-admin <pgsql-admin@postgresql.org>
>Subject: [ADMIN] Changing NOT NULL condition on column
>Date: Tue, 20 May 2003 16:40:34 -0700
>
>
>I need to change the not-null restriction on some columns in a table, and
>this doesn't seem to be possible with ALTER TABLE.  Is it safe to connect
>as superuser and update pg_attribute.attnotnull directly?  Or is there a
>different way to do this, other than dropping/re-creating the whole table?
>
>I'm currently running 7.2.3, but will be upgrading soon so I'd like to know
>if this would work with 7.3 as well.
>
>Thanks!
>
>Bob Smith
>Hammett & Edison, Inc.
>bsmith@h-e.com
>
>
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